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Volume 25 Issue 6
Jun.  2018
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文章导航 >  矿物冶金与材料学报（英文）  > 2018  >  25(6): 682-688
Xiao-guang Liu, Yan Li, Wen-dong Xue, Jia-lin Sun, and Qian Tang, Shear-thickening behavior of Fe-ZSM5 zeolite slurry and its removal with alumina/boehmites, Int. J. Miner. Metall. Mater., 25(2018), No. 6, pp. 682-688. https://doi.org/10.1007/s12613-018-1615-6
Cite this article as:
Xiao-guang Liu, Yan Li, Wen-dong Xue, Jia-lin Sun, and Qian Tang, Shear-thickening behavior of Fe-ZSM5 zeolite slurry and its removal with alumina/boehmites, Int. J. Miner. Metall. Mater., 25(2018), No. 6, pp. 682-688. https://doi.org/10.1007/s12613-018-1615-6
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研究论文

Shear-thickening behavior of Fe-ZSM5 zeolite slurry and its removal with alumina/boehmites

  • Department of Inorganic Nonmetallic Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

  • Atmospheric Environment Department, Chinese Academy for Environmental Planning, Beijing 100012, China

  • 通讯作者:

    Xiao-guang Liu    E-mail: liuxg@ustb.edu.cn

  • A cryogenic scanning electron microscopy (cryo-SEM) technique was used to explore the shear-thickening behavior of Fe-ZSM5 zeolite pastes and to discover its underlying mechanism. Bare Fe-ZSM5 zeolite samples were found to contain agglomerations, which may break the flow of the pastes and cause shear-thickening behaviors. However, the shear-thickening behaviors can be eliminated by the addition of halloysite and various boehmites because of improved particle packing. Furthermore, compared with pure Fe-ZSM5 zeolite samples and its composite samples with halloysite, the samples with boehmite (Pural SB or Disperal) additions exhibited network structures in their cryo-SEM images; these structures could facilitate the storage and release of flow water, smooth paste flow, and avoid shear-thickening. By contrast, another boehmite (Versal 250) formed agglomerations rather than network structures after being added to the Fe-ZSM5 zeolite paste and resulted in shear-thickening behavior. Consequently, the results suggest that these network structures play key roles in eliminating the shear-thickening behavior.
    • Research Article

    Shear-thickening behavior of Fe-ZSM5 zeolite slurry and its removal with alumina/boehmites

    + Author Affiliations
      Abstract
    • A cryogenic scanning electron microscopy (cryo-SEM) technique was used to explore the shear-thickening behavior of Fe-ZSM5 zeolite pastes and to discover its underlying mechanism. Bare Fe-ZSM5 zeolite samples were found to contain agglomerations, which may break the flow of the pastes and cause shear-thickening behaviors. However, the shear-thickening behaviors can be eliminated by the addition of halloysite and various boehmites because of improved particle packing. Furthermore, compared with pure Fe-ZSM5 zeolite samples and its composite samples with halloysite, the samples with boehmite (Pural SB or Disperal) additions exhibited network structures in their cryo-SEM images; these structures could facilitate the storage and release of flow water, smooth paste flow, and avoid shear-thickening. By contrast, another boehmite (Versal 250) formed agglomerations rather than network structures after being added to the Fe-ZSM5 zeolite paste and resulted in shear-thickening behavior. Consequently, the results suggest that these network structures play key roles in eliminating the shear-thickening behavior.
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      • References(18)
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